1
|
Zhang W, Zhou W, Zhang Z, Zhang D, Guo Z, Ren P, Liu F. Effect of Nano-Silica and Sorbitol on the Properties of Chitosan-Based Composite Films. Polymers (Basel) 2023; 15:4015. [PMID: 37836064 PMCID: PMC10575191 DOI: 10.3390/polym15194015] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/02/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023] Open
Abstract
Chitosan and its derivatives are widely used in food packaging, pharmaceutical, biotechnology, medical, textile, paper, agriculture, and environmental industries. However, the flexibility of chitosan films is extremely poor, which limits its relevant applications to a large extent. In this paper, chitosan/sorbitol/nano-silica (CS/sorbitol/SiO2) composite films were prepared by the casting film method using chitosan, sorbitol, Tween-80 and nano-SiO2 as raw materials. The structure of the films was characterized by infrared spectroscopy, electron scanning microscopy, and X-ray diffraction analysis. The effects of sorbitol and nano-silica dosage on the mechanical properties, thermal properties and water vapor barrier properties of the composite film were investigated. The results show that with the gradual increase in sorbitol (≤75 wt %), the elongation at the break of chitosan/sorbitol films significantly increased. When the addition of sorbitol was 75 wt %, the elongation at break of the chitosan/sorbitol composite film was 13 times higher than that of the chitosan film. Moreover, nano-SiO2 can further improve the mechanical properties and thermal stability of the chitosan/sorbitol composite films. When the amount of nano-silica was 4.5 wt %, the composite film became more flexible, with a maximum elongation of 90.8% (which is 14 times that of chitosan film), and its toughness increased to 10.52 MJm-3 (which is 6 times that of chitosan film). This study balances the tensile strength and elongation at break of the composite films by adding a plasticizer and nano-filler, providing a reference for the preparation of chitosan composites or their blending with other polymers, and has practical guiding significance for the industrial production of biomass plastics.
Collapse
Affiliation(s)
- Wei Zhang
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China; (W.Z.); (W.Z.); (Z.G.)
| | - Wentao Zhou
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China; (W.Z.); (W.Z.); (Z.G.)
| | - Zisen Zhang
- School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China (D.Z.)
| | - Di Zhang
- School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China (D.Z.)
| | - Zhengzheng Guo
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China; (W.Z.); (W.Z.); (Z.G.)
| | - Penggang Ren
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China; (W.Z.); (W.Z.); (Z.G.)
| | - Fei Liu
- School of Materials Science and Engineering, Xi’an Polytechnic University, Xi’an 710048, China
| |
Collapse
|
2
|
Abstract
The Python programing language is becoming a promising tool for data analysis in various fields. However, little attention has been paid to using Python in the field of analytical chemistry, though recent advances in instrumental analysis require robust and reliable data analysis. In order to overcome the difficulty in accurate analysis, multivariate analysis, or chemometrics, has been widely applied to various kinds of data obtained by instrumental analysis. In the present work, the potential usefulness of Python for chemometrics and related fields in chemistry is reviewed. Many practical tools for chemometrics, e.g., principal component analysis (PCA), partial least squares (PLS), support vector machine (SVM), etc., are included in the scikit-learn machine learning (ML) library for Python. Other useful libraries such as pyMCR for multivariate curve resolution (MCR), 2Dpy for two-dimensional correlation spectroscopy (2D-COS), etc. can be obtained from GitHub. For these reasons, a computational environment for chemometrics is easily constructed in Python.
Collapse
Affiliation(s)
- Shigeaki Morita
- Department of Engineering Science, Osaka Electro-Communication University
| |
Collapse
|
3
|
|
4
|
Sun ST, Wu PY. Spectral insights into microdynamics of thermoresponsive polymers from the perspective of two-dimensional correlation spectroscopy. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-017-1938-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
5
|
Liu M, Zhou Y, Zhang Y, Yu C, Cao S. Preparation and structural analysis of chitosan films with and without sorbitol. Food Hydrocoll 2013. [DOI: 10.1016/j.foodhyd.2013.03.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
6
|
Quantitative description of aggregation and dissociation of poly (vinyl methyl ether)/poly (2-ethyl-2-oxazoline) chains in water by novel elastic light scattering spectroscopy. Polym Bull (Berl) 2013. [DOI: 10.1007/s00289-013-1058-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
7
|
Conformational transition and its dynamics of naphthalene-labeled poly (octadecyl vinyl ether) chains in dichloromethane solution. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.05.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
8
|
Piermaria J, Bosch A, Pinotti A, Yantorno O, Garcia MA, Abraham AG. Kefiran films plasticized with sugars and polyols: water vapor barrier and mechanical properties in relation to their microstructure analyzed by ATR/FT-IR spectroscopy. Food Hydrocoll 2011. [DOI: 10.1016/j.foodhyd.2010.11.024] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
9
|
Wang H, Sun S, Wu P. Thermodynamics of Hyperbranched Poly(ethylenimine) with Isobutyramide Residues during Phase Transition: An Insight into the Molecular Mechanism. J Phys Chem B 2011; 115:8832-44. [DOI: 10.1021/jp2008682] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hongna Wang
- The Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, People’s Republic of China
| | - Shengtong Sun
- The Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, People’s Republic of China
| | - Peiyi Wu
- The Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, People’s Republic of China
| |
Collapse
|
10
|
Competitive mechanism of poly(ethylene glycol) with poly(vinyl methyl ether) in complexing water molecules revealed with elastic light scattering spectroscopy. Polym Bull (Berl) 2011. [DOI: 10.1007/s00289-011-0554-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
11
|
Spěváček J, Hanyková L, Labuta J. Behavior of Water during Temperature-Induced Phase Separation in Poly(vinyl methyl ether) Aqueous Solutions. NMR and Optical Microscopy Study. Macromolecules 2011. [DOI: 10.1021/ma200010h] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiří Spěváček
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic,
| | - Lenka Hanyková
- Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
| | - Jan Labuta
- Supermolecules Group, WPI Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| |
Collapse
|
12
|
Sun B, Lai H, Wu P. Integrated Microdynamics Mechanism of the Thermal-Induced Phase Separation Behavior of Poly(vinyl methyl ether) Aqueous Solution. J Phys Chem B 2011; 115:1335-46. [DOI: 10.1021/jp1066007] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bingjie Sun
- The Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, People’s Republic of China
| | - Hengjie Lai
- The Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, People’s Republic of China
| | - Peiyi Wu
- The Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, People’s Republic of China
| |
Collapse
|
13
|
Rivero S, García M, Pinotti A. Crosslinking capacity of tannic acid in plasticized chitosan films. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2010.04.048] [Citation(s) in RCA: 189] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
14
|
|
15
|
Zhang WZ, Chen XD, Luo WA, Yang J, Zhang MQ, Zhu FM. Study of Phase Separation of Poly(vinyl methyl ether) Aqueous Solutions with Rayleigh Scattering Technique. Macromolecules 2009. [DOI: 10.1021/ma802671a] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wen Zhi Zhang
- Key Laboratory for Polymer Composite and Functional Materials of the Ministry of Education, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China, and Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Xu Dong Chen
- Key Laboratory for Polymer Composite and Functional Materials of the Ministry of Education, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China, and Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Wei-ang Luo
- Key Laboratory for Polymer Composite and Functional Materials of the Ministry of Education, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China, and Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Jin Yang
- Key Laboratory for Polymer Composite and Functional Materials of the Ministry of Education, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China, and Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Ming Qiu Zhang
- Key Laboratory for Polymer Composite and Functional Materials of the Ministry of Education, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China, and Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Fang Ming Zhu
- Key Laboratory for Polymer Composite and Functional Materials of the Ministry of Education, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China, and Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| |
Collapse
|
16
|
Spěváček J, Starovoytova L, Hanyková L, Kouřilová H. Polymer-Solvent Interactions in Solutions of Thermoresponsive Polymers Studied by NMR and IR Spectroscopy. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/masy.200851303] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|